Home / 28,889.78-43,330.82-9,170.33

Finding the Fourth Proportional to 28,889.78, 43,330.82 and 9,170.33

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Solution

The fourth proportional to 28,889.78, 43,330.82 and 9,170.33 is: 13,754.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.78 : 43,330.82 = 9,170.33 : x
  2. Step 2: Convert to fraction form
    28,889.78/43,330.82 = 9,170.33/x
  3. Step 3: Cross multiply
    28,889.78x = 43,330.82 × 9,170.33
  4. Step 4: Simplify right side
    28,889.78x = 397,357,656.06
  5. Step 5: Solve for x
    x = 397,357,656.06/28,889.78
  6. Step 6: Final answer
    x = 13,754.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.